林下种草生态养鸡牧草品种选择及其组合试验分析  

Analysis of forage variety selection and combination test for ecological chicken raising by planting grass under forest

作　　者：王霞霞[1] WANG Xiaxia(Lv Liang University,Lvliang,Shanxi Province 033000,China)

机构地区：[1]吕梁学院,山西吕梁033000

出　　处：《中国饲料》2021年第6期25-28,共4页China Feed

基　　金：山西省高等学校教学改革创新项目(J2019201);山西省2018年度“1331工程”研究专项课题(ZX—18089);吕梁市科技局社会发展项目(2020SHFZ51)。

摘　　要：本研究旨在研究不同牧草品种组合进行林下养鸡对林地生态、鸡生长性能和屠宰性能的影响。将核桃林分为4块,按照不同的草种组合进行牧草播种;选择160只地方品种鸡随机分为4组,分别在4块核桃林下进行散养,早晚补充精料,饲养为期28 d。试验结果:与对照组相比,试验组植被覆盖率恢复情况较好;试验14~28 d期间,试验1、3组ADFI分别降低9.2%、10.1%(P<0.05),试验1、2、3组F/C分别降低8.3%、8.6%、10.2%(P<0.05);在整个试验期间,试验2、3组F/C较对照组分别下降6.3%、6.9%(P<0.05)。此外,试验3组全净膛率和胸肌率较对照组分别提高7.8%、8.2%(P<0.05),试验1、2、3组鸡腿率较对照组分别增加9.8%、8.8%、10.9%(P<0.05)。The aim of this study was to study the effects of different forage combinations on forest ecology,growth performance and slaughter performance of chickens.160 local breed chickens were randomly divided into four groups.They were raised separately in four walnut forests,which was divided into four parts and sown according to different grass seed combinations,supplemented with concentrate in the morning and evening,for 28 days.Results:the vegetation coverage recovery of the experimental group was better than control;during the 14~28 days of the experiment,the ADFI of the experimental groups 1 and 3 lower by 9.2%and 10.1%(P<0.05),and the F/C of the groups 1,2 and 3 lower by 8.3%,8.6%and 10.2%(P<0.05);during the whole experiment,the F/C of the groups 2 and 3 lower by 6.3%and 6.9%(P<0.05).In addition,the total evisceration rate and breast muscle rate of the groups 3 were higher by 7.8%and 8.2%(P<0.05),and the leg rate of the 1,2and 3 groups were higher by 9.8%,8.8%and 10.9%(P<0.05).

关 键 词：林下种草 生态养鸡 生长性能 屠宰性能 

分 类 号：S831[农业科学—畜牧学]